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705 lines
18 KiB
705 lines
18 KiB
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "fv9OoQsMFk5A"
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},
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"source": [
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"# ការព្យាករណ៍ស៊េរីពេលវេលាដោយប្រើ Support Vector Regressor\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"ក្នុងសៀវភៅកំណត់ត្រានេះ យើងបង្ហាញពីរបៀប៖\n",
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"\n",
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"- រៀបចំទិន្នន័យប្រេកង់ពេលវេលា 2D សម្រាប់បង្រៀនម៉ូឌែលប៉ាន់ស្មាន SVM\n",
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"- អនុវត្ត SVR ដោយប្រើកណ្នែល RBF\n",
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"- វាយតម្លៃម៉ូឌែលដោយប្រើក្រាល និង MAPE\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## ការនាំចូលម៉ូឌុល\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [],
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"source": [
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"import sys\n",
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"sys.path.append('../../')"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"metadata": {
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"id": "M687KNlQFp0-"
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},
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"outputs": [],
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"source": [
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"import os\n",
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"import warnings\n",
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"import matplotlib.pyplot as plt\n",
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"import numpy as np\n",
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"import pandas as pd\n",
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"import datetime as dt\n",
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"import math\n",
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"\n",
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"from sklearn.svm import SVR\n",
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"from sklearn.preprocessing import MinMaxScaler\n",
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"from common.utils import load_data, mape"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "Cj-kfVdMGjWP"
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},
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"source": [
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"## ការរៀបចំទិន្នន័យ\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "8fywSjC6GsRz"
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},
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"source": [
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"### បញ្ជូលទិន្នន័យ\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/",
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"height": 363
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},
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"id": "aBDkEB11Fumg",
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"outputId": "99cf7987-0509-4b73-8cc2-75d7da0d2740"
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},
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"outputs": [
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{
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"data": {
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"text/html": [
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"<div>\n",
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"<style scoped>\n",
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" .dataframe tbody tr th:only-of-type {\n",
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" vertical-align: middle;\n",
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" }\n",
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"\n",
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" .dataframe tbody tr th {\n",
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" vertical-align: top;\n",
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" }\n",
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"\n",
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" .dataframe thead th {\n",
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" text-align: right;\n",
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" }\n",
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"</style>\n",
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"<table border=\"1\" class=\"dataframe\">\n",
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" <thead>\n",
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" <tr style=\"text-align: right;\">\n",
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" <th></th>\n",
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" <th>load</th>\n",
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" </tr>\n",
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" </thead>\n",
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" <tbody>\n",
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" <tr>\n",
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" <th>2012-01-01 00:00:00</th>\n",
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" <td>2698.0</td>\n",
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" </tr>\n",
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" <tr>\n",
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" <th>2012-01-01 01:00:00</th>\n",
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" <td>2558.0</td>\n",
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" </tr>\n",
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" <tr>\n",
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" <th>2012-01-01 02:00:00</th>\n",
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" <td>2444.0</td>\n",
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" </tr>\n",
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" <tr>\n",
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" <th>2012-01-01 03:00:00</th>\n",
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" <td>2402.0</td>\n",
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" </tr>\n",
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" <tr>\n",
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" <th>2012-01-01 04:00:00</th>\n",
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" <td>2403.0</td>\n",
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" </tr>\n",
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" </tbody>\n",
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"</table>\n",
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"</div>"
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],
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"text/plain": [
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" load\n",
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"2012-01-01 00:00:00 2698.0\n",
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"2012-01-01 01:00:00 2558.0\n",
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"2012-01-01 02:00:00 2444.0\n",
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"2012-01-01 03:00:00 2402.0\n",
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"2012-01-01 04:00:00 2403.0"
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]
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},
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"execution_count": 3,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"energy = load_data('../../data')[['load']]\n",
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"energy.head(5)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "O0BWP13rGnh4"
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},
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"source": [
|
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"### គូរតាងទិន្នន័យ\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/",
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"height": 486
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},
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"id": "hGaNPKu_Gidk",
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"outputId": "7f89b326-9057-4f49-efbe-cb100ebdf76d"
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},
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"outputs": [],
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"source": [
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"energy.plot(y='load', subplots=True, figsize=(15, 8), fontsize=12)\n",
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"plt.xlabel('timestamp', fontsize=12)\n",
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"plt.ylabel('load', fontsize=12)\n",
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"plt.show()"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "IPuNor4eGwYY"
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},
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"source": [
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"### បង្កើតទិន្នន័យបណ្តុះបណ្តាល និងតេស្ត\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"id": "ysvsNyONGt0Q"
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},
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"outputs": [],
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"source": [
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"train_start_dt = '2014-11-01 00:00:00'\n",
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"test_start_dt = '2014-12-30 00:00:00'"
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]
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},
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{
|
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
|
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"colab": {
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"base_uri": "https://localhost:8080/",
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"height": 548
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},
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"id": "SsfdLoPyGy9w",
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"outputId": "d6d6c25b-b1f4-47e5-91d1-707e043237d7"
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},
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"outputs": [],
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"source": [
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"energy[(energy.index < test_start_dt) & (energy.index >= train_start_dt)][['load']].rename(columns={'load':'train'}) \\\n",
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" .join(energy[test_start_dt:][['load']].rename(columns={'load':'test'}), how='outer') \\\n",
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" .plot(y=['train', 'test'], figsize=(15, 8), fontsize=12)\n",
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"plt.xlabel('timestamp', fontsize=12)\n",
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"plt.ylabel('load', fontsize=12)\n",
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"plt.show()"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "XbFTqBw6G1Ch"
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},
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"source": [
|
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"### ការរៀបចំទិន្នន័យសម្រាប់ការបណ្តុះបណ្តាល\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"ឥឡូវនេះ អ្នកត្រូវតែរៀបចំទិន្នន័យសម្រាប់ការបណ្តុះបណ្តាលដោយធ្វើការចំរូងនិងការវាស់ទីទិន្នន័យរបស់អ្នក។\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/"
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},
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"id": "cYivRdQpHDj3",
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"outputId": "a138f746-461c-4fd6-bfa6-0cee094c4aa1"
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},
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"outputs": [],
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"source": [
|
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"train = energy.copy()[(energy.index >= train_start_dt) & (energy.index < test_start_dt)][['load']]\n",
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"test = energy.copy()[energy.index >= test_start_dt][['load']]\n",
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"\n",
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"print('Training data shape: ', train.shape)\n",
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"print('Test data shape: ', test.shape)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"វិមាត្រទិន្នន័យឲ្យមានជួរតម្លៃនៅក្នុងចន្លោះ (0, 1)។\n"
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]
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},
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{
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"cell_type": "code",
|
|
"execution_count": null,
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|
"metadata": {
|
|
"colab": {
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|
"base_uri": "https://localhost:8080/",
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"height": 363
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},
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|
"id": "3DNntGQnZX8G",
|
|
"outputId": "210046bc-7a66-4ccd-d70d-aa4a7309949c"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
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"scaler = MinMaxScaler()\n",
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"train['load'] = scaler.fit_transform(train)\n",
|
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"train.head(5)"
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]
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},
|
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/",
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"height": 206
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},
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"id": "26Yht-rzZexe",
|
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"outputId": "20326077-a38a-4e78-cc5b-6fd7af95d301"
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},
|
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"outputs": [],
|
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"source": [
|
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"test['load'] = scaler.transform(test)\n",
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"test.head(5)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "x0n6jqxOQ41Z"
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},
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"source": [
|
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"### ការបង្កើតទិន្នន័យជាមួយជំហានពេលវេលា\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "fdmxTZtOQ8xs"
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},
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"source": [
|
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"សម្រាប់ SVR របស់យើង យើងបម្លែងទិន្នន័យចូលឲ្យមានទ្រង់ទ្រាយជា `[batch, timesteps]`។ ដូច្នេះ យើងបម្លែងទ្រង់ទ្រាយ `train_data` និង `test_data` ដែលមានស្រាប់ ដើម្បីបង្កើតមាត្រថ្មីមួយដែលយោងទៅកាន់ខ្ទង់ពេល (timesteps)។ សម្រាប់ឧទាហរណ៍របស់យើង យើងកំណត់ `timesteps = 5`។ ដូច្នេះ ទិន្នន័យចូលទៅម៉ូដែលគឺសម្រាប់សម័យពេល 4 ដំបូង ហើយទិន្នន័យចេញនឹងជាសម្រាប់សម័យពេលទី 5។\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"id": "Rpju-Sc2HFm0"
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},
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"outputs": [],
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"source": [
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"# Converting to numpy arrays\n",
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"\n",
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"train_data = train.values\n",
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"test_data = test.values"
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]
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},
|
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{
|
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"cell_type": "code",
|
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"execution_count": null,
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"metadata": {},
|
|
"outputs": [],
|
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"source": [
|
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"# Selecting the timesteps\n",
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"\n",
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"timesteps=None"
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]
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},
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{
|
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"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "O-JrsrsVJhUQ",
|
|
"outputId": "c90dbe71-bacc-4ec4-b452-f82fe5aefaef"
|
|
},
|
|
"outputs": [],
|
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"source": [
|
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"# Converting data to 2D tensor\n",
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"\n",
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"train_data_timesteps=None"
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]
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},
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{
|
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"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "exJD8AI7KE4g",
|
|
"outputId": "ce90260c-f327-427d-80f2-77307b5a6318"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
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"# Converting test data to 2D tensor\n",
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"\n",
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"test_data_timesteps=None"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
|
|
"id": "2u0R2sIsLuq5"
|
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},
|
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"outputs": [],
|
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"source": [
|
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"x_train, y_train = None\n",
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"x_test, y_test = None\n",
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"\n",
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"print(x_train.shape, y_train.shape)\n",
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"print(x_test.shape, y_test.shape)"
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]
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},
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{
|
|
"cell_type": "markdown",
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|
"metadata": {
|
|
"id": "8wIPOtAGLZlh"
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|
},
|
|
"source": [
|
|
"## ការបង្កើតម៉ូដែល SVR\n"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"id": "EhA403BEPEiD"
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|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"# Create model using RBF kernel\n",
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"\n",
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"model = None"
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]
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},
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{
|
|
"cell_type": "code",
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|
"execution_count": null,
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|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "GS0UA3csMbqp",
|
|
"outputId": "d86b6f05-5742-4c1d-c2db-c40510bd4f0d"
|
|
},
|
|
"outputs": [],
|
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"source": [
|
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"# Fit model on training data"
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]
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},
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{
|
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"cell_type": "markdown",
|
|
"metadata": {
|
|
"id": "Rz_x8S3UrlcF"
|
|
},
|
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"source": [
|
|
"### ធ្វើការព្យាករណ៍ម៉ូដែល\n"
|
|
]
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},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "XR0gnt3MnuYS",
|
|
"outputId": "157e40ab-9a23-4b66-a885-0d52a24b2364"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"# Making predictions\n",
|
|
"\n",
|
|
"y_train_pred = None\n",
|
|
"y_test_pred = None"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"metadata": {
|
|
"id": "_2epncg-SGzr"
|
|
},
|
|
"source": [
|
|
"## វិភាគកម្រិតប្រតិបត្តិការរបស់ម៉ូដែល\n"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"# Scaling the predictions\n",
|
|
"\n",
|
|
"y_train_pred = scaler.inverse_transform(y_train_pred)\n",
|
|
"y_test_pred = scaler.inverse_transform(y_test_pred)"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "xmm_YLXhq7gV",
|
|
"outputId": "18392f64-4029-49ac-c71a-a4e2411152a1"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"# Scaling the original values\n",
|
|
"\n",
|
|
"y_train = scaler.inverse_transform(y_train)\n",
|
|
"y_test = scaler.inverse_transform(y_test)"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "u3LBj93coHEi",
|
|
"outputId": "d4fd49e8-8c6e-4bb0-8ef9-ca0b26d725b4"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"# Extract the timesteps for x-axis\n",
|
|
"\n",
|
|
"train_timestamps = None\n",
|
|
"test_timestamps = None"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"plt.figure(figsize=(25,6))\n",
|
|
"# plot original output\n",
|
|
"# plot predicted output\n",
|
|
"plt.legend(['Actual','Predicted'])\n",
|
|
"plt.xlabel('Timestamp')\n",
|
|
"plt.title(\"Training data prediction\")\n",
|
|
"plt.show()"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "LnhzcnYtXHCm",
|
|
"outputId": "f5f0d711-f18b-4788-ad21-d4470ea2c02b"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"print('MAPE for training data: ', mape(y_train_pred, y_train)*100, '%')"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/",
|
|
"height": 225
|
|
},
|
|
"id": "53Q02FoqQH4V",
|
|
"outputId": "53e2d59b-5075-4765-ad9e-aed56c966583"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"plt.figure(figsize=(10,3))\n",
|
|
"# plot original output\n",
|
|
"# plot predicted output\n",
|
|
"plt.legend(['Actual','Predicted'])\n",
|
|
"plt.xlabel('Timestamp')\n",
|
|
"plt.show()"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "clOAUH-SXCJG",
|
|
"outputId": "a3aa85ff-126a-4a4a-cd9e-90b9cc465ef5"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"print('MAPE for testing data: ', mape(y_test_pred, y_test)*100, '%')"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"metadata": {
|
|
"id": "DHlKvVCId5ue"
|
|
},
|
|
"source": [
|
|
"## ការព្យាករណ៍ទិន្នន័យពេញលេញ\n"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "cOFJ45vreO0N",
|
|
"outputId": "35628e33-ecf9-4966-8036-f7ea86db6f16"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"# Extracting load values as numpy array\n",
|
|
"data = None\n",
|
|
"\n",
|
|
"# Scaling\n",
|
|
"data = None\n",
|
|
"\n",
|
|
"# Transforming to 2D tensor as per model input requirement\n",
|
|
"data_timesteps=None\n",
|
|
"\n",
|
|
"# Selecting inputs and outputs from data\n",
|
|
"X, Y = None, None"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"id": "ESSAdQgwexIi"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"# Make model predictions\n",
|
|
"\n",
|
|
"# Inverse scale and reshape\n",
|
|
"Y_pred = None\n",
|
|
"Y = None"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/",
|
|
"height": 328
|
|
},
|
|
"id": "M_qhihN0RVVX",
|
|
"outputId": "a89cb23e-1d35-437f-9d63-8b8907e12f80"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"plt.figure(figsize=(30,8))\n",
|
|
"# plot original output\n",
|
|
"# plot predicted output\n",
|
|
"plt.legend(['Actual','Predicted'])\n",
|
|
"plt.xlabel('Timestamp')\n",
|
|
"plt.show()"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {
|
|
"colab": {
|
|
"base_uri": "https://localhost:8080/"
|
|
},
|
|
"id": "AcN7pMYXVGTK",
|
|
"outputId": "7e1c2161-47ce-496c-9d86-7ad9ae0df770"
|
|
},
|
|
"outputs": [],
|
|
"source": [
|
|
"print('MAPE: ', mape(Y_pred, Y)*100, '%')"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"metadata": {},
|
|
"source": [
|
|
"---\n\n<!-- CO-OP TRANSLATOR DISCLAIMER START -->\n**ចំណាំ**៖ \nឯកសារនេះត្រូវបានបកប្រែដោយប្រើសេវាបកប្រែ AI [Co-op Translator](https://github.com/Azure/co-op-translator)។ ខណៈពេលយើងខិតខំសម្រាប់ភាពត្រឹមត្រូវ សូមចំណាំថាការបកប្រែដោយស្វ័យប្រវត្តិនេះអាចមានកំហុសឬការខ្វះភាពត្រឹមត្រូវខ្លះៗ។ ឯកសារដើមក្នុងភាសាតិជនដើមគួរត្រូវបានចាត់ទុកថាជា ប្រភពត្រឹមត្រូវមួយគត់។ សម្រាប់ព័ត៌មានសំខាន់ៗ ការបកប្រែដោយអ្នកជំនាញមនុស្សគឺត្រូវបានណែនាំ។ យើងមិនទទួលខុសត្រូវចំពោះការយល់ច្រឡំ ឬការបកស្រាយខុសៗដែលខុសពីនេះអាចកើតមានពីការប្រើប្រាស់ការបកប្រែក្នុងរូបមន្តនេះឡើយ។\n<!-- CO-OP TRANSLATOR DISCLAIMER END -->\n"
|
|
]
|
|
}
|
|
],
|
|
"metadata": {
|
|
"accelerator": "GPU",
|
|
"colab": {
|
|
"collapsed_sections": [],
|
|
"name": "Recurrent_Neural_Networks.ipynb",
|
|
"provenance": []
|
|
},
|
|
"kernelspec": {
|
|
"display_name": "Python 3",
|
|
"language": "python",
|
|
"name": "python3"
|
|
},
|
|
"language_info": {
|
|
"codemirror_mode": {
|
|
"name": "ipython",
|
|
"version": 3
|
|
},
|
|
"file_extension": ".py",
|
|
"mimetype": "text/x-python",
|
|
"name": "python",
|
|
"nbconvert_exporter": "python",
|
|
"pygments_lexer": "ipython3",
|
|
"version": "3.7.1"
|
|
}
|
|
},
|
|
"nbformat": 4,
|
|
"nbformat_minor": 1
|
|
} |